JPH03224166A - Disk driving device - Google Patents

Abstract

PURPOSE:To prevent the damage of an optical head or the like by setting a shutter holding member in the deepest part of a cartridge holder and holding a shutter opened to its full width. CONSTITUTION:A shutter holding means 52 which holds a shutter 11 opened by an opening arm 4 or 5 in a prescribed open position is set on the disk cartridge stop end side of a cartridge holder 3. When a disk cartridge 6 is inserted to the deepest part of the cartridge holder 3, the shutter 11 is set to the overall open state, and the shutter holding member 52 is engaged with a slider 22. Consequently, the shutter 11 is not closed though a pin 4a or 5a and the slider 22 are disengaged from each other by a wrong oscillation or the like. Thus, the damage of the optical head or the like is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a disk drive device in which a disk cartridge having a shutter attached thereto is mounted and drives a disk-shaped recording medium housed inside the disk cartridge.

[Prior Art] Conventionally, a disk-shaped recording medium is mounted inside a disk cartridge while being housed in the disk cartridge, and a turntable is inserted through a window hole provided in the disk cartridge to rotate the disk-shaped recording medium. A disk drive device is known in which a recording/reproducing head is inserted through a window that is opened in series with the hole or separately from the window hole to record/reproduce information.

FIG. 32 is a diagram showing an example of a conventionally known disk drive device of this type, which is formed in the shape of a frame into which a disk cartridge can be placed, and has a turntable mounted on the bottom.
Opening/closing arms 4, 5 are rotatably attached to one end of the opening/closing arms 4, 5 at the innermost side surface of the cartridge holder 3, which has an opening 2 for inserting the opening/closing arms 4,
Pins 4a and 5a attached to the tip end of the disk cartridge holder 3 are arranged on the disk cartridge insertion path within the cartridge holder 3. The opening/closing arms 4 and 5 are always urged in the direction of ejecting the disk cartridge 6 from the cartridge holder 3 by a spring member not shown, and are directed inward toward each other (arrow A) by the insertion force of the disk cartridge 6.
, B), and when the disk cartridge 6 is ejected from the cartridge holder 3, it is configured to automatically return to its original position by the elastic force of the spring member.

On the other hand, the disk cartridge 6 applied to this optical disk drive device, as shown in FIGS. 32 to 34, is composed of an upper half 8a and a lower half 8b, and has a double-sided recording disk-shaped recording medium 7 inside. a cartridge case 8 in which is rotatably housed;
A shutter for opening and closing a window hole 10 for inserting the head and turntable, which is attached along the front edge 9 of the upper half 8a and the lower half 8b and is opened from the approximate center of the upper half 8a and the lower half 8b to the front edge 9. It consists of 11.

A sliding portion 12 for sliding the pin 4a or 5a is recessed in the front edge 9 of the cartridge case 8, and a sliding portion 12 is provided at a position where the pin 4a or 5a contacts when the shutter 11 is fully opened. In this case, a recessed portion 13 following the sliding portion 12 is recessed. Further, a notch 14 for positioning the cartridge holder 3 is formed in the side surface of the cartridge case 8, and the upper half 8
Erroneous erasure prevention mechanisms 16 and 17 are provided at corners near the rear edge 15 of the lower halves 8b and 8b at symmetrical positions with respect to the center line CC of the window hole 10.

When the disc cartridge 6 is not in use, that is, before it is inserted into the cartridge holder 3,
As shown in FIG. 33, the window hole 10 is closed by a shutter 11, preventing foreign matter from entering through the window hole 10, and protecting the disk-shaped recording medium 7.

When this disk cartridge 6 is inserted into the cartridge holder 3, first, as shown in FIG. .

When the disk cartridge 6 is further pushed in from this state, one arm 4 rotates in the direction of arrow A due to the pushing force, and the pin 4a engages with the end surface of the shutter 11 to press the shutter 11 in the opening direction. .

At this time, the other pin 5a is not engaged with the shutter 11,
It rides on the front surface of the shutter 11 and slides on the surface in the direction of arrow B.

When the disk cartridge 6 is inserted into the cartridge holder 3 to a predetermined position, the shutter 11 moves by a predetermined amount in the direction of the arrow, as shown in FIG. 34, and the window hole 10 is opened. At this time, the pin 4a falls into the recess 13 formed in the front edge 9 of the disk cartridge 6, and the shutter 11 is fixed at the position.

At the same time, a sensor (not shown) provided in the cartridge holder 3 detects that the disc cartridge 6 has been inserted to a predetermined position, and the cartridge holder 3 is lowered to record disc-shaped data on the turntable 1. Clamp the media 7.

This completes the loading of the disk cartridge 6.

In addition, as shown in FIGS. 35(a) and 35(b), as another example of a disc cartridge that has been considered in the past, a notch 19 is formed in the front part of the shutter 11, and the notch In some cases, the shutter 11 is opened and closed by engaging the pin 5a or 5b with the shutter 19.

[Problem to be solved by the invention]

As described above, since the opening/closing arms 4 and 5 are always urged in the direction of ejecting the disk cartridge 6 from the cartridge holder 3 by a spring member (not shown), the cartridge case 8 is pushed against the pin 4a.

4b, the pins 4a and 5a are always pressed against the sliding portion 12 of the cartridge case 8. Therefore, under normal conditions, pin 4a or 5a
The engagement between the shutter 11 and the shutter 11 will not be disengaged.

However, for example, in a vehicle-mounted disk drive device, etc., pins 4a or 5 are exposed to large vibrations from the outside.
a easily disengages from the shutter 11.

When the pin 4a or 5a is disengaged from the shutter 11, the shutter 11 is automatically moved in the closing direction by a return spring (not shown) provided in the cartridge case 8, but unlike conventional disk drive devices. Since there is no effective safety device installed to prevent this, the recording/playback head or the turntable 1 is not connected to the shutter 11.
This causes the problem of collision and damage.

The present invention has been made to overcome the deficiencies of the prior art, and its purpose is to provide a disk drive device with excellent protection functions for recording/reproducing heads, turntables, and disk cartridges. be.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention includes a turntable, a cartridge holder arranged to be able to approach or separate from the turntable, and a cartridge holder that is rotatable to the cartridge holder. Equipped with an opening/closing arm attached to the
In a disk drive device equipped with a disk cartridge having a front edge covered with a shutter that is opened and closed by the opening/closing arm, the shutter, which is opened to a predetermined position by the opening/closing arm, is installed in the vicinity of the disk cartridge stopping position of the cartridge holder. A shutter holding member is provided to hold the shutter in a predetermined position.

[Effect]

With the shutter holding member configured as described above, even if the shutter in the fully open state disengages from the pin for some reason, the shutter holding member prevents the shutter from moving in the closing direction. / There is no collision between the playback head and the turntable, and damage to these members is prevented.

Additionally, if for some reason the shutter disengages from the pin during the opening operation, the shutter will return to the closed position, and the shutter holding member will no longer be able to hold the shutter and will become part of the disk cartridge. Collide. Therefore, the disk cartridge is not inserted to a predetermined position in the cartridge holder, and the sensor provided in the cartridge holder is not activated, so that collision between the shutter and the turntable caused by the lowering of the cartridge holder is prevented.

[Embodiment] First, before explaining the present invention, an example of a disk cartridge applied thereto will be explained based on FIGS. 20 to 29. In these figures, the above-mentioned Fig. 32~
Components or portions corresponding to those shown in FIG. 34 are labeled with the same reference numerals.

As shown in FIG. 20, this disk cartridge 6 mainly consists of a cartridge case 8 made of hard plastic.
, a double-sided recording disk-shaped recording medium 7 rotatably housed in the cartridge case 8 , a slider 22 slidably attached to the front edge 9 of the cartridge case 8 , and a slider 22 fixed to the slider 22 . It consists of a shutter 11 that slides in one direction from a closed position to open and close a window hole 10 formed in the cartridge case 8, and a shutter presser plate 18 that presses the tip of the shutter 11.

As shown in this figure, the cartridge case 8 consists of an upper half 8a and a lower half 8b, and these halves 8a and 8b are joined together using a plurality of screws (not shown) to form a disc-shaped case. It constitutes a space for storing the recording medium 7 and other components.

As shown in FIG. 21, the lower half 8b has an elongated hole extending from the approximate center corresponding to the rotation center P of the optical disc 7 toward the front edge 9 (the side on which it is pushed into the disc drive device). A window hole 10 is provided, and openings 16a and 17a for an erroneous erasure prevention mechanism are provided symmetrically on both left and right sides near the rear edge 9a. The width W of the window hole 10 is the same as that of the disk-shaped recording medium 7.
The disc-shaped recording medium 7 is formed in such a width that a turntable for rotationally driving the disc-shaped recording medium 7 and a head for recording/reproducing information on the disc-shaped recording medium 7 can be inserted therein.

The outer layer edge of the lower half 8b excluding the front edge 9 has a 21st
As shown in Fig. 22, the joining wall 2 of a certain height
3 are erected. Further, a partition wall 24 having the same height as the joining wall 23 is erected in a ring shape on the circumference of the disk-shaped recording medium 7 around the rotation center P, and a partition wall 24 is provided in a ring shape to define the storage space 24a of the disk-shaped recording medium 7. It consists of Further, on the circumference around the window hole 10 centered on the rotation center P, a disk receiver 10a lower than the joining wall 23 and the partition wall 24 is erected in a ring shape.

The front edge 9 of the lower half 8b is provided with the joining wall 23.
A guide rail 25, which is slightly lower than the guide rail 24, is formed in a straight line, and a stepped portion 25a for stopping the shutter is formed at the end of the guide rail 25 on the shutter closing side. Also, this guide rail 2
On the inside of 5, a joining wall 26 having the same height as the joining walls 23 and 24 is erected in parallel with the guide rail 25.

As shown in FIG. 23, a reinforcing portion 27 recessed from the surface of the lower half 8b is provided at a portion of the curved edge of the lower half 8b facing the window hole 10, and is connected to the tip of the guide rail 24. They are coplanar and integrally molded.

Further, as shown in FIG. 23, a recess 28 is formed in the outer surface of the lower half 8b at a portion on which the shutter 11 slides, for accommodating the surface of the shutter 11 within the surface of the lower half 8b.

On the other hand, the upper half 8a is formed to have substantially the same shape as the lower half 8b, except that each member is provided at a symmetrical position. Therefore, when these two halves 8a and 8b are joined, a slider insertion hole 29 is formed in a straight line at the joining portion of the front edge 9, as shown in FIG.

Next, the configuration of the shutter 11 will be explained.

As shown in FIGS. 25 and 26, the shutter 11 is constructed by bending a thin plate made of stainless steel or the like into a U-shape to form an upper piece 11a and a lower piece having a length that can cover the entire window hole 10 at the same time. The piece 11b is integrally formed with a front piece 11c having a width approximately equal to the thickness S of the shutter setting portion of the cartridge case 8,
Locking pawls 30 are bent inward at portions of the upper piece 11a and the lower piece 11b that are close to the front piece 11c.

As shown in FIG. 27, the slider 22 is composed of a wide front part 31, a narrow rear part 32, and a connecting part 33 that connects them. The guide rail 25 can be installed inside.

The front part 32, as shown in FIGS. 28 and 29,
A length Q that is approximately equal to the width W of the window hole 10 and the reinforcing portion 27
a head insertion portion 35 formed to have a width T8 that is equal to or narrower than the thickness T1 of the shutter 11; a shutter mounting portion 36 formed to have a width approximately equal to the inner width of the shutter 11; Tapered part 37 formed at the tip
and a pin engaging portion 37a formed on the opposite side of the shutter mounting portion 36 via the head insertion portion 35. The pin retaining portion 37a is formed to have approximately the same width as the shutter mounting portion 36.

A recess 38 into which the shutter 11 can be placed is formed on the front, upper, and lower surfaces of the shutter mounting portion 36 . Furthermore, a recess 39 is formed at the center of the upper and lower surfaces of the shutter mounting portion 36 to facilitate engagement with the locking pawl 3o formed in a curved manner on the shutter 11. Furthermore, a recess 40 for inserting the locking pawl 30 is formed on the back side of the recess 39 of the shutter mounting portion 36 for engaging the locking pawl.

The rear surface portion 32 is formed to have the same width over its entire length when the slider 22 is viewed from the back side, and has a tapered portion 37.
As shown in FIG. 29, the side end has a spring locking portion 32.
b is provided protrudingly.

The slider 22 is integrally formed of a synthetic resin with excellent slipperiness, such as nylon or polyacetal.

The shutter 11 is attached to the slider 22 by engaging the locking pawl 30 with the shutter attachment portion 36. Further, the slider 22 moves the tapered portion 37 to the shutter 1.
The cartridge case 21 is slidably attached to the cartridge case 21 by providing the grooves 34a and 34b across the guide rail 25 toward the moving side when the cartridge case 1 is opened.

At this time, the upper piece 11a and the lower piece 11b of the shutter 11 are
Polymerized on both the upper and lower sides of the cartridge case 8,
Each window hole 10 opened in the upper half 8a and the lower half 8b
occlude. The tip of the shutter 11 is tightly attached to the cartridge case 8 by a long and narrow presser plate 42 attached to the cartridge case 8.

Note that the step portion 25a for stopping the shutter is connected to the slider 2.
The shutter 11 is formed in such a positional relationship that the side portions of the shutter 11 do not come into contact with the end surfaces of the recess 28 when the end surfaces of the recess 28 come into contact with each other. Thereby, dust generation due to collision between the shutter 11 and the cartridge case 8 can be reduced.

Next, an example of a disk drive device according to the present invention will be explained based on FIGS. 1 to 19.

Fig. 1 is a perspective view of the vicinity of the cartridge holder, Fig. 2 is a plan view of the cartridge holder, Fig. 3 is a side view of the cartridge holder as seen from the disc cartridge insertion direction, and Fig. 4 is a side view of the cartridge holder. FIG. In these figures, parts corresponding to those in FIG. 32 described above are indicated by the same reference numerals.

As shown in these figures, in the disk drive device of this embodiment, two opening/closing arms 4 and 5 are attached to the top surface of the top plate 3b of the cartridge holder 3. Also,
A long head insertion hole 3d is formed in the top plate 3b over a portion facing the window hole 10 of the disk cartridge inserted from the disk cartridge stop end 3a to the stop end 3a.

As shown in FIGS. 1 and 2, each opening/closing arm 4.5 is combined so as to cross each other symmetrically with respect to the center line XX of the head insertion hole 3d, and the supporting shafts 4b, 5b are connected to the cartridge It is rotatably attached to the insertion opening side of the holder 3, and its tip end is arranged on the disc cartridge stopping end 3a side of the cartridge holder 3. Therefore, the support shaft 4b
is set on the left side of the center line X-x.
, the tip is disposed on the right side of the center line x-x, and the support shaft 5b
is set on the right side of the center line X-X.
The distal end portion is disposed on the left side of the center line XX.

As shown by the dashed line in FIG. 2, each opening/closing arm 4.5, even when driven to the innermost position, opens the window hole 10 of the disk cartridge inserted into the cartridge holder 3 and the head insertion. Its shape, arrangement, rotation range, etc. are set so as not to block the hole 3d. In addition, these two opening/closing arms 4.5 are shaped so that none of them protrudes beyond the range of the top plate 3b of the cartridge holder 3 while moving from the start end to the end end of the operating range. The arrangement, rotation range, etc. are set. Furthermore, in order to prevent these two opening and closing arms 4 and 5 from interfering with each other during operation, as shown in FIGS. They are configured to intersect three-dimensionally.

At the tip of each opening/closing arm 4, 5, there are pins 4a, 5a.
are attached, and these pins 4a.

5a is disposed outside the shutter closed position in the cartridge holder 3 through arc-shaped through holes 41a and 41b formed in the top plate 3b, as shown in FIGS. 1 and 2. . Of course, the through holes 41a and 41b are the support shafts 4b of the arms 4 and 5, respectively.

It is established on an arc centered at 5b.

The opening/closing arm 4.5 is always urged outward by return springs 42a, 42b. As a result, when the disk cartridge 6 is not inserted, the other pin 4a is arranged so as to come into contact with the outer surface of the pin engaging portion 37a of the slider 22 in the closed position. The other pin 5a is arranged so as to come into contact with the outer surface of the pin engaging portion 37a of the slider 22 in the closed position when the disk cartridge 6 is turned upside down and installed in the cartridge holder 3.

Disk cartridge stop end 3 of cartridge holder 3
On the a side, as shown in FIGS. 1 and 2, a sensor 51 for detecting whether the disk cartridge 6 is inserted to a predetermined position and whether the shutter 11 is completely opened; A shutter holding means 52 is provided for holding the shutter 11 opened by the opening arm 4 or 5 at a predetermined open position.

The sensor 51 constitutes a switch device for a drive source (not shown) that moves the cartridge holder 3 up and down, and when the disk cartridge 6 is inserted to a predetermined position and the shutter 11 is completely opened, the The drive source is activated to lower the cartridge holder 3 toward the turntable 1 side.

FIG. 5 is a perspective view showing a first example of the shutter holding member 52, which has a substantially U-shaped side surface consisting of an upper piece 52a, a lower piece 52b, and a connecting piece 52c connecting these pieces. A chamfer 53a is provided on the inner surface end portions of the upper piece 52a and the lower piece 52b to facilitate insertion of the head insertion portion 35 of the slider 22. The total height H of this shutter holding member 52 is formed to be the same as or smaller than the thickness S of the cartridge case 21, and the interval W between the inner surfaces of the upper piece 52a and the lower piece 52b is set so that the slider 2
The thickness of the head insertion portion 35 is slightly larger than that of the head insertion portion 35 of No. 2. The shutter holding member 52 of this example is set at a position where it can engage with an end surface formed between the head insertion portion 35 and the shutter mounting portion 36 of the slider 22 when the shutter 11 is opened to the fully open position. .

FIG. 6 is a perspective view showing a second example of the shutter holding member 52. In order to facilitate engagement with the slider 22, chamfers 53b are also provided on the side surfaces of the upper piece 52a and the lower piece 52b. There is. The rest is the same as the shutter holding member of the first example.

FIG. 7 is a perspective view showing a third example of the shutter holding member 52, in which chamfers 53c are provided on both sides of the tips of the upper piece 52a and the lower piece 52b to facilitate engagement with the slider 22. There is. The rest is the same as the shutter holding member of the first example.

FIG. 8 is a perspective view showing a fourth example of the shutter holding member 52, in which the horizontal piece 55 and the vertical piece 56 are
It is formed into an L-shape consisting of. The rest is the same as the shutter holding member of the first example.

FIG. 9 is a perspective view showing a fifth example of the shutter holding member 52, in which chamfers 53d are provided on both sides of the distal end of the horizontal piece 55 to facilitate engagement with the slider 22. The rest is the same as the shutter holding member of the fourth example.

FIG. 10 is a perspective view showing a sixth example of the shutter holding member 52, showing a mounting portion 57 for the cartridge holder 3 and a pin-shaped locking portion 5 vertically protruding from the mounting portion 57.
It consists of 8.

As shown in FIG. 11, the shutter holding member 52 of this example engages with the end surface formed between the head insertion portion 35 and the shutter mounting portion 36 of the slider 22 when the shutter 11 is opened to the fully open position. Alternatively, as shown in FIG. It is also possible to provide a concave portion 59b at the position and insert the locking portion 58 into the concave portion 59b.

FIG. 13 is a perspective view showing a seventh example of the shutter holding member 52, in which a fixing part 61 is fixed to the cartridge holder 3, and an engagement part attached to the fixing part 61 so as to be able to protrude or insert into the fixing part 61. It consists of a pin 62 and a spring member 63 that is stretched between the fixing part 61 and the engagement pin 62 and always biases the engagement pin 62 in a direction to protrude from the fixation part 61.

As shown in FIGS. 14 and 15, the fixing portion 61 has a hole 64 in the center of one end for slidably housing the engagement pin 62, and a hole 64 on the circumferential surface of the hole 64. , hole 6
An introduction groove 65a that communicates with the opening of No. 4 and extends in the axial direction of the hole 64, a connecting groove 65b that extends in the circumferential direction of the hole 64 from the terminal end of the connecting groove 65b, and an axial line of the hole 64 from the terminal end of the connecting groove 65b. A guide groove 65c extending in the direction is formed. Further, a hub 66 is provided at the other end of the fixing portion 61 to protrude outward, and a screw insertion hole 67 is provided in the hub 66 .

On the other hand, at the base end of the engagement pin 62, as shown in FIG. 16, a protrusion 68 that can be inserted into the valley grooves 65a, 65b, and 65c is provided in a protruding manner.

After storing the spring member 63 in the hole 64 formed in the fixing part 61, the shutter holding member 52 inserts the protrusion 68 protruding from the engagement pin 62 into the introduction groove 65a, the connecting groove 65b, and the guide groove 65c. By inserting them in order, they are assembled into one piece.

FIG. 17 is a perspective view showing an eighth example of the shutter holding member 52, and in order to facilitate engagement with the slider 22, a rolling member 69a is attached to the tip of the engagement pin 62, with a portion of the rolling member 69a extending outwardly. It is set so that it stands out. The rest is the same as the shutter holding member of the seventh example.

FIG. 18 is a perspective view showing a ninth example of the shutter holding member 57, which includes a fixing portion 61, an engagement arm 70 rotatably attached to the fixing portion 61, and an engaging arm 70 that engages with the fixing portion 61. The spring member 63a is stretched between the engagement arm 70 and the spring member 63a, which always biases the engagement arm 70 in a direction opposite to the insertion direction of the disk cartridge 6.

FIG. 19 is a perspective view showing a tenth example of the shutter holding member 52, and in order to facilitate engagement with the slider 22,
A rolling member 69b is set at the distal end of the engagement arm 70 so that a portion of the rolling member 69b protrudes to the outside. The rest is the same as the shutter holding member of the ninth example.

The shutter holding members 52 of the seventh to tenth examples are arranged so that when the shutter 11 is opened to the fully open position, the slider 22
It can also be set to engage with the end surface formed between the head insertion part 35 and the shutter attachment part 36,
In addition, a through hole 59a is formed in the front piece 11c of the shutter 11, and a recessed portion 59b is provided in the shutter mounting portion 36 of the slider 22 at a position corresponding to the through hole 59a. Matching pin 62 or engagement arm 70
It is also possible to insert (see FIGS. 11 and 12).

Hereinafter, the operation of the disk drive device according to the above embodiment will be described in a third manner.
This will be explained based on FIG. 0 and FIG. 31.

Before the disc cartridge is inserted, as shown in FIG. 4, the cartridge holder 3 is separated from the turntable l, and as shown in FIG.
Two pins 4a and 5a are spaced apart from each other on both the left and right sides.

When the disk cartridge 6 is inserted into the cartridge holder 3, first, as shown in FIG.
is brought into contact with the outer surface of the pin engaging portion 37a of the slider 22 in the closed position, and the other pin 5a is brought into contact with the front edge of the disk cartridge on the shutter open side.

When the disk cartridge is further inserted, the arms 4 and 5 are driven inwardly by the pressing force thereof, and the driving force of one arm 4 drives the shutter 11 in the opening direction. In the process of driving the shutter 11 in the opening direction, the other pin 5a meets the slider 22, but the slider 2
Since the tapered portion 37 is formed on the slider 2, the pin 5a rides on the front piece 11c of the shutter 11 without colliding with the slider 22.

When the disk cartridge 6 is inserted to the innermost part 3a of the cartridge holder 3, the shutter 11 is fully opened and the shutter holding member 52 is engaged with the slider 22, as shown in FIG.

At the same time, the sensor 51 detects that the disk cartridge 6 is inserted to a predetermined position and the shutter 1 is
It is detected that the cartridge holder 1 is completely opened, and a drive source (not shown) is driven to move the cartridge holder 3 onto the turntable l.
lowered to the side.

As a result, the disk-shaped recording medium 7 is mounted on the turntable 1, and recording/reproducing operations become possible.

In the disk drive device of the above embodiment, the shutter holding member 52 is set at the innermost part of the cartridge holder 3, and is engaged with the shutter 11 (slider 22) that is opened to the fully open position, thereby preventing unauthorized vibration. Pin 4a
Or even if 5a and slider 22 are disengaged,
Since the shutter 11 does not close, damage to the optical head and the like can be prevented.

Furthermore, if the shutter and the pin become disengaged during the opening operation due to improper vibration, etc., the shutter will return to the closed position and the shutter holding member will no longer be able to engage with the shutter. During insertion, the shutter holding member and the disc cartridge collide, making it impossible to insert the disc cartridge to a predetermined position within the cartridge holder.

Therefore, the sensor provided in the cartridge holder is not activated and the cartridge holder is not lowered, so that collision between the shutter and the turntable is prevented, and damage to these members is prevented.

The present invention relates to a shutter holding member provided in a cartridge holder, and regarding the cartridge holder, opening/closing arm, disk cartridge, etc.
Regardless of the embodiments described above, it can be configured in any shape and structure.

〔Effect of the invention〕

As explained above, according to the present invention, the shutter holding member is set at the innermost part of the cartridge holder to hold the shutter that is opened to the fully open position. Even when the shutter 11 is disengaged from the slider, the shutter 11 does not close, and damage to the optical head and the like can be prevented. Also,
This shutter holding member can detect whether or not the shutter has been opened to the fully open position, so the cartridge holder will not fall when the shutter is not open, and collision between the shutter and the turntable will be prevented. can do.

[Brief explanation of drawings]

1 to 19 are views of a first embodiment of the present invention, in which FIG. 1 is a perspective view of a disk drive device, FIG. 2 is a plan view thereof,
3 is a side view of the disc cartridge as viewed from the inserting direction, FIG. 4 is a side sectional view, FIG. 5 is a perspective view of the first example of the shutter holding member, and FIG. 6 is a second example of the shutter holding member.
FIG. 7 is a perspective view showing a third example of the shutter holding member, FIG. 8 is a perspective view showing a fourth example of the shutter holding member, and FIG. 9 is a perspective view showing a fifth example of the shutter holding member. FIG. 10 is a perspective view showing a sixth example of the shutter holding member, FIGS. 11 and 12 are the shutters of the sixth example, and FIG. 12 is a sectional view showing the fixing part of the shutter holding member of the seventh example. , 15th
16 is a perspective view of the engagement pin, FIG. 17 is a perspective view showing an eighth example of the shutter holding member, and FIG. 18 is a perspective view showing a ninth example of the shutter holding member. FIG. 19 is a perspective view showing a tenth example of the shutter holding member. 20 to 29 are explanatory diagrams of a disk cartridge applied to the disk drive device of the first embodiment, in which FIG. 20 is a perspective view of the disk cartridge, FIG. 21 is a plan view of the lower half, and FIG. 22 is a sectional view of the same, FIG. 23 is a front view of the same, FIG. 24 (a) and (b) are explanatory views of the cartridge case, FIG. 25 is a perspective view of the shutter, FIG. 26 is a side view of the same, and FIG. The figure is a side view of the slider, FIG. 28 is a front view thereof, and FIG. 29 is a plan view thereof. FIGS. 30 and 31 are explanatory diagrams of the operation of the disk drive device. FIG. 32 to FIG. 35 are explanatory diagrams of the prior art, and the third
2 is a perspective view of the cartridge holder, FIGS. 33 and 34 are explanatory views of the operation, and FIG. 35 is a plan view showing another example of the disk cartridge. 1... Turntable, 3... Cartridge holder, 4, 5... Arm, 4a, 5a
...Pin, 52...Shutter holding member. Figure 1 Figure 2 Figure 5 Figure 6 Figure 7 Figure 8 Figure 10 Figure 13 Figure 61 Figure 15 Figure 16 Figure 17 Figure 19 Figure 18 Figure 22 Figure 23 Figure 24 ( b) Doso 110 6'D Figure 25 Figure 26 Figure 30 Figure 31

Claims (9)

[Claims] (1) A turntable, a cartridge holder disposed so as to be able to approach or separate from the turntable, and an opening/closing arm rotatably attached to the cartridge holder, with the opening/closing arm attached to the front edge. In a disk drive device in which a disk cartridge is mounted with a shutter to be opened and closed, a shutter for holding the shutter at a predetermined position, which has been opened to a predetermined position by the opening/closing arm, is located near a disk cartridge stop position of the cartridge holder. A disk drive device characterized by being provided with a holding member. (2) In claim 1, the shutter holding member is provided with a substantially U-shaped member comprising an upper piece, a lower piece, and a connecting piece connecting one end of the upper piece and the lower piece. Characteristic disk drive device. (3) The disk drive device according to claim 1, wherein the shutter holding member is a substantially L-shaped member consisting of a horizontal piece and an upright piece formed at one end of the horizontal piece. (4) The disk drive device according to claim 1, wherein the shutter holding member includes a member comprising a mounting portion and a pin-shaped locking portion vertically protruding from the mounting portion. . (5) In claim 1, the shutter holding member includes a fixed part, an engaging pin attached to the fixed part so as to be able to protrude from or be inserted into the fixed part, and a tension member between the fixed part and the engaging pin. What is claimed is: 1. A disk drive device characterized in that a member is provided with a spring member having an elastic shape. (6) In claim 1, the shutter holding member includes a fixed part, an engagement arm rotatably attached to the fixed part, and a tensioned member between the fixed part and the engagement arm. 1. A disk drive device comprising a member comprising a tabular spring member. (7) A disk drive device according to any one of claims 2 to 6, wherein a portion of the tip of the shutter holding member that comes into contact with the shutter or a member that operates integrally with the shutter is chamfered. . (8) In claim 1, the shutter or a part of the member that operates integrally with the shutter is formed with a stepped portion exposed from the front edge of the disk cartridge, and the shutter is opened to a fully open position. The disk drive device is characterized in that the shutter holding member is disposed such that the tip of the shutter holding member is engaged with the stepped portion. (9) In claim 1, a recess is formed in the front face of the shutter or a member that operates integrally with the shutter, and when the shutter is opened to a fully open position, the tip of the shutter holding member is located within the recess. A disk drive device, characterized in that the shutter holding member is disposed such that the shutter holding member is fitted into the shutter holding member.